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Energy Information Administration, Monthly Energy Review, Table 1.10, June 2022 Note: Population-weighted degree days. The West South Central division had the largest number of cooling degree days in 2019.ĭownload image Cooling degree days by census division in 2021 West Midwest Northeast South Cooling degree days by census division in 2021 F L G A SC NC V A WV DE MD South Atlantic 2,227 NH ME M A CT RI New England 607 VT P A NJ N Y Middle Atlantic 828 TN A L East South Central 1,622 K Y MS I L MI OH IN WI East North Central 909 OK AR L A TX West South Central 2,643 KS NE SD MN I A MO ND West North Central 1,090 NV AZ UT ID CO W Y MT NM Mountain 1,567 C A OR W A Pacific 1,032 Data source: U.S. The total CDD for the two days is 33 CDD. If the next day has a mean temperature of 83☏, it has 18 CDD. A day with a mean temperature of 80☏ has 15 CDD. Pacific division includes Alaska and Hawaii.Ĭooling degree days (CDD) are a measure of how hot the temperature was on a given day or during a period of days. Energy Information Administration, Monthly Energy Review, Table 1.9, June 2022 Note: Population-weighted degree days.
#Q in peak wet weather calculator download
Presented in three sections, Guide to Managing Peak Wet Weather Flows in Municipal Wastewater Collection and Treatment Systems ($10 members/$25 non-members) is available for download or print-on-demand in WEF's online Marketplace at image Heating degree days by census division in 2021 West Midwest Northeast South Heating degree days by census division in 2021 F L G A SC NC V A WV DE MD South Atlantic 2,365 NH ME M A CT RI New England 5,800 VT P A NJ N Y Middle Atlantic 5,272 TN A L East South Central 3,154 K Y MS I L MI OH IN WI East North Central 5,750 OK AR L A TX West South Central 1,918 KS NE SD MN I A MO ND West North Central 6,058 NV AZ UT ID CO W Y MT NM Mountain 4,720 C A OR W A Pacific 3,332 Data source: U.S.
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Prepared by CH2M HILL and Water Resources Strategies, the document underwent a year-long review process by a project steering committee of WEF members, technical review group of Federation and individual technical experts, and volunteer stakeholders. "WEF's guide outlines the steps and analysis required to reach an environmentally-protective solution that combines stakeholder input, community values, and technical approaches to compare alternatives for each wet weather situation." "The Federation appreciates EPA's efforts to issue a sound and workable peak wet weather policy, said Robert Matthews, chair of the Regulatory Subcommittee of WEF's Government Affairs Committee and senior vice president of CDM, Inc. If finalized, it will require a comprehensive utility analysis to identify and assess alternatives to discharges and restrict diversions when peak flows are largely due to poor collection system maintenance or lack of investment in capacity.
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Announced in December 2005, the policy applies the bypass standard of "no feasible alternatives" to wet weather diversions at POTWs serving sanitary sewers. In addition, the guide supports implementation of EPA's proposed Peak Wet Weather Discharge Policy. To help address these issues, WEF's guide provides a method for POTWs to be more proactive in planning for these events and outlines a process that can be used to build support for real-world solutions to improve overall water quality. Publicly owned treatment works (POTWs) - often faced with a limited ability to control highly variable wet weather flows - must propose alternatives, assess impacts, and proactively communicate with regulators and the community during wet weather events. Environmental Protection Agency (EPA), the 117-page document is designed to help owners, planners, designers, and operators of wastewater collection and treatment systems improve and maximize performance during peak wet weather events. 8, 2006 - The Water Environment Federation® has released its new electronic publication, Guide to Managing Peak Wet Weather Flows in Municipal Wastewater Collection and Treatment Systems.ĭeveloped under a Water Quality Cooperative Agreement between WEF and the U.S.